Cap for an ink bottle



FIG. 1 is a front, top and left side perspective view of a cap for an ink bottle showing my new design;

FIG. 2 is a rear, bottom and right side perspective view thereof;

FIG. 3 is a front elevational view thereof, the rear being a mirror image thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a cross-sectional view thereof taken on line 8—8 of FIG. 6.

The broken lines are for illustration only and form no part of the claimed design. 

The ornamental design for a cap for an ink bottle, as shown and described. 